In a "normal" situation, the President would step

In a "normal" situation, the President would step in for the CEO. In this specific situation, I would expect the CFO to step in as the interim President given that he previously held that position for ~6 months while they searched for NP's replacement. Also, the COB isn't an employee or full-time position, and they're not going to oversee day-to-day operations like the CFO. They're frequently employed somewhere else and are only in an advisory role.

My comments are just my opinions and should NOT be taken as investment advice.